who served in the 2nd Battalion of the 44th Regiment of Foot (*) (The East Essex Regiment)
at the battles of Quatre Bras (*) (16 June), and Waterloo (18 June 1815).

The image is of a portrait by William Salter, (*)
one of two painted as studies for the larger work - The Waterloo
Banquet at Apsley House, 1836. The other portrait is in the National
Portrait Gallery. (*) Another portrait is in Chelmsford. (*)

There is a "biography" of Major General O'Malley here but it is not completely accurate. The statue mentioned at the end was erected
by the Friendly Brothers of St. Patrick and was originally sited in
the Parade Ground of Castlebar Barracks. It is now in the grounds of
ChristChurch - Castlebar Parish Church - in Co. Mayo, Ireland. His obituary as published in The Gentleman's Magazine is here.